bolted lap joints formula and example calc

[des007]

i need to design a lifting point on a column, i am looking for bolted single shear lap joint calculations (metric)

Thanks

 

[desertfox]

hi des007

Have a look at this site, also there are links to other sites:-

http://www.roymech.co.uk/Useful_Tables/Screws/index_screws.htm

desertfox

 

[desertfox]

Hi des007

Here's another example:-

http://www.steel-stainless.org/designmanual/Docs/En/Example6.pdf

desertfox

 

[desertfox]

last but not least

example 11 in this pdf does a bolted lap joint in double shear as opposed to your single shear but it might help:-

http://archone.tamu.edu/faculty/anichols/index_files/courses/arch331/NS18steeldesign.pdf

 

[des007]

Thanks for the advise, but i need a sample of the application i need

regards

Des

 

[zekeman]

Best location is such that the lifting vector and the restraint vector are colinear and pass through the CM of the bolt pattern.

 

[CoryPad]

VDI 2230
NASA RP1228
AISC 360
Eurocode 3, Part 1.8

 

[drawoh]

des007,

Does 8mt on your drawing mean 8 (metric) tonnes?

I think I can do this analysis, but if my boss brought this to me, I would advise him to take it a structural engineer. It is not just the lap joint that can fail.

JHG

 

[SWmechE]

des007,

I would have to agree with drawoh, the requirements for lifting lugs are pretty tight and 8mt isn't some trivial weight. Judging by the pinhole size alone in relation to the rest of the lug this is probably not a great design.